Aaron44126

I experienced something similar on the Precision 7770. It wasn't because of thermal throttling from the GPU, but rather it was because the system was having trouble deciding whether it should prioritize the CPU or GPU for power, and whenever priority fell to the CPU, GPU performance (and the framerate) would take a notable hit. So, something to look into. If you're not seeing the GPU heating up to the point of throttling, this is likely NVIDIA Dynamic Boost doing its thing (wrongly). To note, I never "solved" this, though it is probably solvable. I was too frustrated by various aspects of the Precision 7770 (this, and other things) so I stopped using it as a daily driver.

You should be able to upgrade from 10 Pro to 11 LTSC by switching "EditionID" to "EnterpriseS" in the registry, as described in the opening post. Note that Windows will periodically revert this value so you'll need to check it again if you get to the point of setup where it is not allowing you to upgrade in-place.

You can't cross-flash a Quadro vBIOS on a GeForce GPU. AFAIK, there is no ES VBIOS for the GeForce cards. @jeamn once had some success getting a GeForce 1070 to work, but it's a bit more involved. https://www.nbrchive.net/forum.notebookreview.com/threads/trials-and-tribulations-installing-a-1070-in-a-m6800.828000/index.html

I wrote out how I did INF mods before. (Doing it through nvcleanstall wasn't a thing back then.) https://www.nbrchive.net/forum.notebookreview.com/threads/precision-7530-precision-7730-owners-thread.820539/page-253.html#post-10937563 I never ran into code 43, so not sure what to say if that doesn't work.

I don't have a whole lot to offer. I once flashed a Quadro P5000 on a Precision M6800, and I did it from Ubuntu Linux running in recovery/terminal mode, not from FreeDOS. It went fine. But I ended up not keeping the P5000 because even though this solved the boot problem, I had other problems with it afterwards. And these days, I'm completely out of doing this sort of tweaking.

I tried using a M6800 fan in the M6700. They are physically similar enough to fit, and the connector physically fits into the motherboard, but Dell changed the pinout, so the M6800 fan won't operate in the M6700. This to say, I would not expect it to work just because they look the same.

I believe that any issues "caused" by the technician or replacement parts are covered for 90 days, even if your warranty expires in the meantime. If they propose an upgrade, you can always decline.

NVIDIA finally announces their CPUs. NVIDIA Spark ARM CPUs, with (up to) 6144 Blackwell CUDA cores and (up to) 128 GB of unified memory. https://arstechnica.com/gadgets/2026/06/nvidia-gets-into-the-arm-pc-business-with-new-high-end-rtx-spark-processor/ Lots of comparisons to what Apple has been doing with laptops. If the efficiency is good and the price is right, it could be really compelling. Interested to see how it develops.

I stand corrected. This must be "new" for this generation, first I've heard of it. Typically, one of the drive slots has PCIe lanes attached directly to the CPU, and the others all go through the PCH, so this is not a surprise. Though I can't explain why Dell numbered them the way that they did (assuming that this is actually the reason behind what you are experiencing).

Cannot confirm. Have not tried it personally. I have heard multiple stories of users trying 330W in "regular" hardware configurations and it not offering any benefit over 240W at all. But stock configurations are hard to push past 240W power needed just for compute. So what I was going for is something like: if there is any chance that >240W will get you some benefit, you'd have to be using an aftermarket high-power GPU. If the system isn't charging, I doubt that it is the PSU's fault. The system should charge even with a 90W adapter (maybe even less) if it is powered off. I see you have new motherboards on the way to test, but there's also a chance that it could just be the battery going bad?

Oh, I don't take it that far, I just blow them with air from every angle that I can manage. (And mine still developed the rattling, too.)

I do have to remember to clean mine every few months in order to get the fans back to "silent mode" again ...

This is controlled by a mux that sets itself up at boot time. I believe what you are asking for is possible in systems that support NVIDIA's "Advanced Optimus" which can actually "dynamically" change which GPU is driving the laptop display, without a reboot. However, Dell hasn't implemented Advanced Optimus into these workstations.

There is no indication that we are getting such models this year. Nothing has appeared in regulatory databases. Intel didn’t release “business/pro” versions of the HX CPUs for this generation.

I don't have experience with this system, but what you describe here is the exact behavior from the Precision 7770 and 7780. If the built-in display supports VRR but not full GSYNC, then you can only use VRR with the iGPU driving the panel.